50. The most common method of sterilizing heat-tolerant dental instruments is steam pressure in a(n): a. Ultrasonic. b. Chemiclave. c. Dry-clave. d. Autoclave. 51. Which type of indicator is placed inside every cassette or package to verify that the sterilant has reached the instruments inside? a. Chemical. b. Mechanical. c. Biomedical. d. Autoclave. 52. The CDC recommends using biological indicators (i.e., spore tests) at least: a. Daily. 53. What type of environmental surface is most likely to be touched by contaminated hands or instruments during clinical procedures? a. Clinical contact. b. Housekeeping. c. Operatory. d. Barrier. 54. All environmental surface products used for the disinfection of contaminated clinical contact surfaces must: a. Contain the ingredient glutaraldehyde to ensure disinfection. b. Be used on all housekeeping surfaces, including the walls and floors. c. Be EPA-registered hospital disinfectants with an intermediate-level claim. d. Be EPA-registered hospital disinfectants with a low- level claim. 55. Which of the following statements is true regarding dental unit waterlines? a. Biofilm microbes originate from the oral flora. b. Biofilm can be prevented by using a self-contained water unit without chemical additives. c. Water for nonsurgical dental procedures must have less than 500 CFU/mL of colony-forming bacteria. d. It is necessary to incorporate waterline treatment solutions only into high-speed handpiece use. b. Weekly. c. Monthly. d. Yearly.
56. When exposing and developing dental radiographs or utilizing digital radiography: a. Only the sensor itself needs to be disinfected. b. Only gloves need to be worn. c. Barrier protection is sufficient. d. Standard precautions apply. 57. Single-use items enhance infection control because they: a. Require extra steps during the cleaning process. b. Can be wiped down with environmental surface disinfectant products. c. Are discarded and not used for any other patients. d. Can be effectively sterilized and reused. 58. Which of the following statements is correct regarding pre-procedural mouth rinses containing an antimicrobial agent? a. They prevent clinical infections in dental healthcare personnel. b. They eliminate the need to disinfect environmental and housekeeping surfaces following dental procedures. c. They may reduce the level of oral microorganisms in aerosols and spatter during dental procedures. d. They are recommended by the CDC to prevent infection transmission in the dental setting. 59. Which of the following is true regarding regulated medical waste? a. Regulated medical waste disposal must follow federal, state, and local regulations. b. Blood-stained gauze from a routine prophy is considered regulated medical waste. c. Only contaminated sharps are considered regulated medical waste. d. Regulated medical waste is about 30% of the total dental office waste.
Course Code: DOH02CD
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